Bolster-guide link for railway-trucks.



FRANK IB. BEANS, OF SI-IBION HILL, PENNSYLVANIA, ASSIGNOR TO THE BALDWIN LOCOMOTIVE WORKS, OF PHILADELPI-IIA, PENNSYLVANIA, A COBIPORATION OF PENNSYLVANIA.

BOLSTER-GUIDE LINK FOB, RAILWAY-TBUCKS.

Specificaton of Letters Patent.

]Patented Apr. SU, 1918.

Application filed May 24, 1917. Seral NO. 170,698.

To all wlLOm Z't may Concern:

Be it known that I, FRANK B. DEANS, a citizen of the United States, and a resident of Sharon Hill, County of Delaware, State of Pennsylvania, have invented certain Improvements in BOlster-Guide Links for Bailway-Trucks, Of which the following is a specifica tion.

My ,invention relates to certain improvements in railway trucks, particularly those used for electric railway trucks in which the trucks carry the mot-ors. In this type of truck, when the motor starts, the chafing plates. are subjected to considerable shock and when the brakes are applied the parts are also subjected to shock.

The object of my invention is to provide Inechanism for connecting the bolster to the frame of the truck in such a manner that the shock will be taken up by this mechansm and not by the chafing plates. This mechanism will also tend to hold' the bolsteI' against undue Vertical movement and.

the truck bolster l. Springs 5 are located between the bolster and the spring plate 6 secured to the transoms. 7 is the center bearing for the truck bolster recessed to receive the center bearing of the body bolster and having a hole 8 therein for the king pin. Secured to each transom are the usual chafing plates 9 against which the bolster comes in contact when any fore and aft shock is given to the truck. In the type of truck to which my invention is particularly adapted the inotors are mounted on aXleS and the aXles are driven directly from the motors, consequently, the moment power is applied the truck is moved forward and the chafing plates strike the bolster. Therefore, the strain is placed between the bolster and the center bearing.

By my invention, I relieve the plates Of the pressure and transmit the strain to the bolster through a series of links. In the present instance, I secure a plate 10 to each end of the bolster 4:, one of such plates being clearly shown in Fgs. 1 and 2. Formed on this plate are hooks 11, in the present instance, and secured to each side frame 2 on each side of the center of the truck are platcs 12 having upturnedpon tions 13, which are perforated for the reception of eye bolts 14 connected to the chains 15, which are composed of a series of links. The end links 16 of the chains engage the hooks 11, as shown. On the eye bolts l l are nuts 17, the bolts passing through openings in the projections 13 in the plate 12 so that, On turning the nuts, the tension of the chains 15 can be regulated in order to make the connection between the bolster and the frame of any degree desired so that the strains will be trans mitted through this chain connection rather than through the chafing plates and transoms. Furthermore, this arrangement prevents undue rocking of the truck bolster, as'

it tends to hold the body bolster in position. It also prevents or dainpens the lateral movement of the truck bolster.

I claim:

1. The combination in a railway truck, of a frame; a truck bolster mounted in the frame; means for supporting the truck bol ster; and flexible means arranged longitudnally in respect to the truck and attached to each end of the bolster and to the frame at each side of the bolster so that the shock due to starting and braking will be taken by the frame through the said flexible means.

2. The combination in a railway truck, of a frame; a bolster mounted in the frame and having a center bearing'. for the body bolster of the car; and chains connected to each end of the truck bolster and attached to the side frames of the truck at each side of the bolster.

3. The combinaton in a truck, of side frames; transoms connecting the side frares, said frames being Spaced apart; a

l fralnes truck boister incnnted .in the space between the transoins and having a center bearing for the body boister; chains attached to each end of the truck bolster; and means for detachably connecting the chains With the frame SO that the shoek duc to starting and braking Will be taken by the frame through the chains.

t. The combination in a truck, of side transeins connecting the side frames; a truck belster niounted in the space between the transoins and supported On the frame O the truck and having a center bearing for the body boister having hooked plates at each end; 'two sets of chains at each side Of the truck secured to the hOOks Of the body boister and te the side fralnes Of the truck.

The cenlbinatioii in Dieter driven track, of side frames; transonis connecting he side franies; springs carried by the truck; a bolster located between the transolns and inounted On the springs and having a center bearing for the boister carried by the Car body; a projecting piate at each end of the bolster; plates seeured to the frame of the truck en each side of thehoistor; chains connecting the plates On the frame With the plates On the belster; and means for adjusting the Chains, said chains pre- Venting excessive \Year and halnmering en the chafing plates Of the truck and also limiting the 1nOVen'1ent of the boister both verticaily and laterally.

In witness whereof I aflixnlv Signature.

FRANK BDENS.

Ccpies of this patent may be obtained for five cents each by addressing the Commissioner of Patcnts. Washington, D. C. 

